<template>
  <div class="hello">
    <h1>{{count}}</h1>
    <p @click="add">++</p>
    <p @click="subtraction">--</p>
    <p>this*2:{{take()}}</p>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  props: {
    msg: String
  },
  data(){
    return{
      count:0
    }
  },
  // computed(){
  //   take(){
  //     this.count *2
  //   }
  // },
  methods:{
    add(){
      this.count ++
    },
    subtraction(){
      this.count --
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>
